The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2026
Filed:
Dec. 05, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Rei Kurashima, Kanagawa, JP;
Shogo Tazawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A piezoelectric element includes a first electrode provided on a substrate, a piezoelectric layer provided stacked on the first electrode, a second electrode provided stacked on the piezoelectric layer, an insulation layer, and a first wiring electrode. The insulation layer is provided in such a manner as to cover at least portions of the piezoelectric layer and the second electrode. The first wiring electrode is provided in such a manner as to cover at least a portion of the insulation layer and is electrically connected to the second electrode via a first contact hole. In plan view of the piezoelectric layer, a periphery of the first electrode and a periphery of the piezoelectric layer overlap in a region where the piezoelectric layer and the first wiring electrode overlap, and at least a portion of a periphery of the second electrode is positioned in a region of the piezoelectric layer.